Home / 681,031.53-939,829.87-375,109.04

Finding the Fourth Proportional to 681,031.53, 939,829.87 and 375,109.04

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Solution

The fourth proportional to 681,031.53, 939,829.87 and 375,109.04 is: 517,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,031.53 : 939,829.87 = 375,109.04 : x
  2. Step 2: Convert to fraction form
    681,031.53/939,829.87 = 375,109.04/x
  3. Step 3: Cross multiply
    681,031.53x = 939,829.87 × 375,109.04
  4. Step 4: Simplify right side
    681,031.53x = 352,538,683,117.49
  5. Step 5: Solve for x
    x = 352,538,683,117.49/681,031.53
  6. Step 6: Final answer
    x = 517,653.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.